Why does the author include this description of the penny in beginning of the chapter to emphasize for the reader the difference between modern currency and the British currency of that time period?

The author includes the description of the penny at the beginning of the chapter to highlight the stark contrast between modern currency and the British currency of the time. This emphasis serves to ground the reader in the historical context, illustrating how the value and physicality of money have evolved. By detailing the penny's characteristics, the author invites readers to consider the broader implications of economic change and societal values, setting the stage for the themes explored in the chapter.